Value Collection A98002 Wedge Lock Washer M12 Zinc-plated

Product Description

The VALUE COLLECTION A98002 is a metric wedge lock washer engineered to resist fastener loosening under vibration and dynamic loads. Sized for M12 threaded fasteners, the washer features a maximum outside diameter of 0.7677 inches and an inside diameter range of 0.5039 to 0.5197 inches. The mating cam faces are designed so that any rotational movement under load causes the washer pair to expand axially, increasing clamp force rather than allowing the fastener to back out. The zinc flake finish over a Grade 2 base provides corrosion resistance suitable for general industrial and mechanical assembly applications. Sold in a package of 100 pieces.

Wedge lock washers in this size class are used wherever vibration-resistant fastening is required: industrial machinery, structural assemblies, transportation equipment, and mechanical enclosures. They are installed in mating pairs — one washer on each side of the joint interface — and are compatible with standard M12 hex bolts, cap screws, and flange fasteners. The inch-measurement dimensions make this washer suitable for applications specified in imperial engineering drawings while maintaining M12 thread compatibility. Mechanical assemblers, maintenance technicians, and millwrights are the primary installers.

Key Features

• Wedge cam profile increases axial clamp load under vibration, resisting self-loosening
• M12 thread size with inside diameter range of 0.5039 to 0.5197 inches for consistent fitment
• Maximum outside diameter of 0.7677 inches, minimum outside diameter of 0.7598 inches
• Zinc flake finish coating provides corrosion resistance for general industrial environments
• Grade 2 material rating for standard-duty mechanical assemblies
• Packaged in a 100-piece quantity for maintenance and production use

Compatibility

Designed for use with M12 threaded fasteners including hex bolts and cap screws where vibration-resistant locking is required in general industrial and mechanical assembly applications.

Installation Notes

Wedge lock washers must be installed in matched pairs with the cam faces mating against each other. Ensure the fastener and mating surface are clean and free of grease before installation, as lubrication can reduce the wedge locking effect. Tighten to the torque specification required by the joint design — do not substitute wedge lock washers for other fastener preload methods without confirming compatibility with the assembly's engineering requirements. Installation is typically performed by mechanical assemblers or maintenance technicians using standard hand or power torque tools.